Edi Gathegi, who played a chillingly evil vampire in Twilight and Twilight Saga: New Moon, is joining X-Men: First Class in the role of Darwin. That character, the first bi-racial mutant (in the comic series), has the power of “reactive evolution,” which allows him to adapt to any situation or environment. Plunged underwater, he’ll grow gills, he’ll gain night vision in pitch black and his skin grows fire retardant when burned.

Gathegi, who played Laurent in the Twilight films, just wrapped production on the Paul Johansson-directed adaptation of the Ayn Rand novel Atlas Shrugged. He’s repped by Paradigm and Framework.

X-Men: First Class director Matthew Vaughn has set James McAvoy to play Xavier, Michael Fassbender to play Magneto, Alice Eve as Emma Frost, Nicholas Hoult to play Beast, Jennifer Lawrence to play Mystique, Caleb Landry Jones to play Banshee and Lucas Till to play Havoc. Kevin Bacon is playing the villain.